5 Commits

Author	SHA1	Message	Date
Rich Felker	7ee3dcb3c6	memstreams: fix incorrect handling of file pos > current size ... the addition is safe and cannot overflow because both operands are positive when considered as signed quantities.	2011-09-04 10:29:04 -04:00
Rich Felker	c88f36f556	optimize seek function for memory streams	2011-09-04 00:08:32 -04:00
Rich Felker	32d67e938e	fix twos complement overflow bug in mem streams boundary check ... the expression -off is not safe in case off is the most-negative value. instead apply - to base which is known to be non-negative and bounded within sanity.	2011-09-04 00:06:01 -04:00
Rich Felker	1e69376435	fix some length calculations in memory streams	2011-09-03 20:19:51 -04:00
Rich Felker	1461e02757	implement open_wmemstream ... not heavily tested, but it seems to be correct, including the odd behavior that seeking is in terms of wide character count. this precludes any simple buffering, so we just make the stream unbuffered.	2011-09-03 19:49:46 -04:00